Image sharing on existing Multi-site

[dennislam08]

It is a problem when I install this plugin on the existing multi-site, I can't get the image on the subsites.

I suggest we can check the image before it returns the result on wp_get_attachment_image_src filter function. If the image array is empty after switched to the media site, we can get the image from the current blog.

[johnbillion]

Thanks for the report. This is not a use case that this plugin will support because it greatly increases the complexity. I recommend checking out the alternatives.